Merck & Co., Inc.

Symbol
MRK on NYSE
Business address
126 East Lincoln Avenue, P.O. Box 2000, Rahway, NJ, 07065
Top holdings (ownership)
PSNL and HARP
Top securities (13F)
PSNL, MRNA, KYMR, ALEC, , EVAX, STRO, VRDN, LVTX, XLO, CARM, NEUP, and HURA
State of incorporation
NJ
Fiscal year end
31 December
Former names
SCHERING PLOUGH CORP (to 29 Oct 2009)
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Merck & Co., Inc. has filed 2,897 SEC EDGAR filings since 07 Mar 1994

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
SC TO-T/A Open Document Open Filing SC TO-T/A 19 Dec 2025
SC TO-T/A Open Document Open Filing SC TO-T/A 17 Dec 2025
SC TO-T Open Document | Data Open Filing SC TO-T 05 Dec 2025
8-K Open Document | Data Open Filing 8-K 04 Dec 2025 04 Dec 2025 001-06571
424B5 Open Document | Data Open Filing 424B5 03 Dec 2025 333-278066
FWP Open Document Open Filing FWP 02 Dec 2025 333-278066
424B5 Open Document Open Filing 424B5 01 Dec 2025 333-278066
13F-HR Open Document Open Filing 12 Nov 2025 30 Sep 2025 028-25193
4 Open Document Open Filing PRIMARY DOCUMENT 12 Nov 2025 10 Nov 2025
144 Open Document Open Filing 10 Nov 2025 001-06571
10-Q Open Document | Data Open Filing 3Q25 FORM 10-Q 05 Nov 2025 30 Sep 2025 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 04 Nov 2025 03 Nov 2025
144 Open Document Open Filing 03 Nov 2025 001-06571
8-K Open Document | Data Open Filing FORM 8-K 30 Oct 2025 30 Oct 2025 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 02 Oct 2025 30 Sep 2025
4 Open Document Open Filing PRIMARY DOCUMENT 02 Oct 2025 30 Sep 2025
4 Open Document Open Filing PRIMARY DOCUMENT 02 Oct 2025 30 Sep 2025
8-K Open Document | Data Open Filing 8-K 09 Sep 2025 09 Sep 2025 001-06571
424B5 Open Document | Data Open Filing 424B5 04 Sep 2025 333-278066
FWP Open Document Open Filing FWP 03 Sep 2025 333-278066
424B5 Open Document Open Filing 424B5 02 Sep 2025 333-278066
13F-HR Open Document Open Filing 13 Aug 2025 30 Jun 2025 028-25193
10-Q Open Document | Data Open Filing 2Q25 FORM 10-Q (6.30.25) 05 Aug 2025 30 Jun 2025 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 05 Aug 2025 04 Aug 2025
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8-K Open Document | Data Open Filing FORM 8-K 29 Jul 2025 25 Jul 2025 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jul 2025 30 Jun 2025
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4 Open Document Open Filing PRIMARY DOCUMENT 02 Jul 2025 30 Jun 2025
11-K Open Document Open Filing 11-K MSD PUERTO RICO SAVINGS & SECURITY PLAN 27 Jun 2025 31 Dec 2024 001-06571
11-K Open Document Open Filing 11-K MERCK US SAVINGS PLAN 27 Jun 2025 31 Dec 2024 001-06571
11-K Open Document Open Filing 11-K MSD EMPLOYEE STOCK PURCHASE AND SAVINGS PLAN 27 Jun 2025 31 Dec 2024 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 03 Jun 2025 30 May 2025
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SD Open Document Open Filing FORM SD 30 May 2025 001-06571
8-K Open Document | Data Open Filing FORM 8-K 29 May 2025 27 May 2025 001-06571
13F-HR Open Document Open Filing 14 May 2025 31 Mar 2025 028-25193
PX14A6G Open Document Open Filing NATIONAL LEGAL AND POLICY CENTER - PX14A6G 07 May 2025 001-06571
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4/A Open Document Open Filing PRIMARY DOCUMENT 02 May 2025 29 Apr 2025
10-Q Open Document | Data Open Filing 1Q25 FORM 10-Q (3.31.25) 02 May 2025 31 Mar 2025 001-06571
4/A Open Document Open Filing PRIMARY DOCUMENT 02 May 2025 29 Apr 2025
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UPLOAD Open Document Open Filing 28 Apr 2025 001-06571
144 Open Document Open Filing 25 Apr 2025 001-06571
8-K Open Document | Data Open Filing FORM 8-K 24 Apr 2025 24 Apr 2025 001-06571
PX14A6G Open Document Open Filing 24 Apr 2025 001-06571
CORRESP Open Document Open Filing 16 Apr 2025
ARS Open Document Open Filing ARS 15 Apr 2025 31 Dec 2024 001-06571
PX14A6G Open Document Open Filing 14 Apr 2025 001-06571
UPLOAD Open Document Open Filing 10 Apr 2025 001-06571
DEFA14A Open Document Open Filing DEFA14A 09 Apr 2025 001-06571
DEF 14A Open Document | Data Open Filing DEF 14A 09 Apr 2025 27 May 2025 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 02 Apr 2025 31 Mar 2025
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SCHEDULE 13G/A Open Document Open Filing 06 Mar 2025 005-33582
10-K Open Document | Data Open Filing 10-K FOR THE FISCAL YEAR ENDED DECEMBER 31, 2024 25 Feb 2025 31 Dec 2024 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 20 Feb 2025 19 Feb 2025
144 Open Document Open Filing 19 Feb 2025 001-06571
13F-HR Open Document Open Filing 14 Feb 2025 31 Dec 2024 028-25193
144 Open Document Open Filing 13 Feb 2025 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 13 Feb 2025 13 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 11 Feb 2025 08 Feb 2025
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144 Open Document Open Filing 06 Feb 2025 001-06571
8-K Open Document | Data Open Filing FORM 8-K 04 Feb 2025 04 Feb 2025 001-06571
SCHEDULE 13G/A Open Document Open Filing 03 Feb 2025
4 Open Document Open Filing PRIMARY DOCUMENT 29 Jan 2025 27 Jan 2025
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4 Open Document Open Filing PRIMARY DOCUMENT 03 Jan 2025 31 Dec 2024
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4 Open Document Open Filing PRIMARY DOCUMENT 03 Jan 2025 01 Jan 2025
3 Open Document Open Filing PRIMARY DOCUMENT 03 Jan 2025 01 Jan 2025
SCHEDULE 13G Open Document Open Filing 23 Dec 2024
3 Open Document Open Filing OWNERSHIP DOCUMENT 23 Dec 2024 19 Dec 2024 001-38943
8-K Open Document | Data Open Filing FORM 8-K 22 Nov 2024 19 Nov 2024 001-06571
SC 13G/A Open Document Open Filing 06 Nov 2024
10-Q Open Document | Data Open Filing 3Q24 FORM 10-Q 06 Nov 2024 30 Sep 2024 001-06571
25-NSE Open Document Open Filing 04 Nov 2024 001-06571
8-K Open Document | Data Open Filing FORM 8-K 31 Oct 2024 31 Oct 2024 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 01 Oct 2024 30 Sep 2024
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4 Open Document Open Filing PRIMARY DOCUMENT 06 Aug 2024 05 Aug 2024
10-Q Open Document | Data Open Filing 10-Q 05 Aug 2024 30 Jun 2024 001-06571
8-K Open Document | Data Open Filing FORM 8-K 30 Jul 2024 30 Jul 2024 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jul 2024 28 Jun 2024
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jul 2024 28 Jun 2024
4 Open Document Open Filing PRIMARY DOCUMENT 02 Jul 2024 28 Jun 2024
11-K Open Document Open Filing 11-K MSD EMPLOYEE STOCK PURCHASE AND SAVINGS PLAN 25 Jun 2024 31 Dec 2023 001-06571
11-K Open Document Open Filing 11-K MSD PUERTO RICO SAVINGS & SECURITY PLAN 25 Jun 2024 31 Dec 2023 001-06571
11-K Open Document Open Filing 11-K MERCK US SAVINGS PLAN 25 Jun 2024 31 Dec 2023 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 04 Jun 2024 31 May 2024
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CERT Open Document Open Filing NYSE CERTIFICATION 30 May 2024 001-65671
8-A12B Open Document Open Filing 8-A12B 30 May 2024 001-06571
8-K Open Document | Data Open Filing 8-K 30 May 2024 28 May 2024 001-06571
SD Open Document Open Filing FORM SD 28 May 2024 001-06571
424B5 Open Document Open Filing 424B5 20 May 2024 333-278066
FWP Open Document Open Filing FWP 16 May 2024
424B5 Open Document Open Filing 424B5 15 May 2024 333-278066
POSASR Open Document Open Filing POSASR 14 May 2024 333-278066
144 Open Document Open Filing 06 May 2024 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 06 May 2024 03 May 2024
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10-Q Open Document | Data Open Filing 10-Q 03 May 2024 31 Mar 2024 001-06571
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8-K Open Document | Data Open Filing FORM 8-K 25 Apr 2024 25 Apr 2024 001-06571
ARS Open Document Open Filing ARS 11 Apr 2024 31 Dec 2023 001-06571
DEFA14A Open Document Open Filing DEFA14A 11 Apr 2024 001-06571
DEF 14A Open Document | Data Open Filing DEF 14A 11 Apr 2024 28 May 2024 001-06571
10-K/A Open Document | Data Open Filing 10-K/A 11 Apr 2024 31 Dec 2023 001-06571
3 Open Document Open Filing PRIMARY DOCUMENT 08 Apr 2024 01 Apr 2024
PX14A6G Open Document Open Filing INSPIRE INVESTING, LLC - PX14A6G 01 Apr 2024 001-06571
4 Open Document Open Filing PRIMARY DOCUMENT 29 Mar 2024 28 Mar 2024
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PX14A6G Open Document Open Filing BOWYER RESEARCH - PX14A6G 28 Mar 2024 001-06571
S-3ASR Open Document Open Filing S-3ASR 19 Mar 2024 333-278066
S-3ASR Open Document Open Filing S-3ASR 19 Mar 2024 333-278065
4 Open Document Open Filing 4 11 Mar 2024 11 Mar 2024 001-38800
10-K Open Document | Data Open Filing 10-K 26 Feb 2024 31 Dec 2023 001-06571
8-K Open Document | Data Open Filing FORM 8-K 20 Feb 2024 15 Feb 2024 001-06571
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144 Open Document Open Filing 14 Feb 2024 001-06571
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SC 13G/A Open Document Open Filing SCHEDULE 13G/A 13 Feb 2024 005-33582
144 Open Document Open Filing 13 Feb 2024 001-06571
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8-K Open Document | Data Open Filing FORM 8-K 01 Feb 2024 29 Jan 2024 001-06571
SC 13G/A Open Document Open Filing 26 Jan 2024 005-33582
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SC 13G Open Document Open Filing 23 Jan 2024
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8-K Open Document | Data Open Filing FORM 8-K 28 Nov 2023 21 Nov 2023 001-06571
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10-Q Open Document | Data Open Filing 10-Q 03 Nov 2023 30 Sep 2023 001-06571
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8-K Open Document | Data Open Filing FORM 8-K 26 Oct 2023 26 Oct 2023 001-06571
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8-K Open Document | Data Open Filing FORM 8-K 01 Aug 2023 01 Aug 2023 001-06571
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8-K Open Document | Data Open Filing 8-K 26 May 2023 23 May 2023 001-06571
SD Open Document Open Filing SD 22 May 2023 001-06571
PX14A6G Open Document Open Filing 18 May 2023 001-06571
8-K Open Document | Data Open Filing 8-K 17 May 2023 17 May 2023 001-06571
424B5 Open Document Open Filing 424B5 10 May 2023 333-254703
FWP Open Document Open Filing FWP 09 May 2023 333-254703
424B5 Open Document Open Filing 424B5 08 May 2023 333-254703
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10-K Open Document | Data Open Filing 10-K 24 Feb 2023 31 Dec 2022 001-06571
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SC 13G/A Open Document Open Filing SCHEDULE 13G/A 09 Feb 2023 005-33582
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SC 13G/A Open Document Open Filing 03 Feb 2023 005-33582
8-K Open Document | Data Open Filing FORM 8-K 02 Feb 2023 02 Feb 2023 001-06571
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SC TO-T/A Open Document Open Filing SC TO-T/A 02 Apr 2019
3 Open Document Open Filing 28 Mar 2019 18 Mar 2019
4 Open Document Open Filing 27 Mar 2019 25 Mar 2019
SC TO-T/A Open Document Open Filing SC TO-T/A 26 Mar 2019
4 Open Document Open Filing 20 Mar 2019 18 Mar 2019
4 Open Document Open Filing 20 Mar 2019 20 Mar 2019
3 Open Document Open Filing 20 Mar 2019 18 Mar 2019
SC TO-T/A Open Document Open Filing SC TO-T/A 15 Mar 2019
4 Open Document Open Filing 14 Mar 2019 13 Mar 2019
8-K Open Document Open Filing 8-K 07 Mar 2019 07 Mar 2019 001-06571
4 Open Document Open Filing 06 Mar 2019 04 Mar 2019
424B5 Open Document Open Filing 424B5 06 Mar 2019 333-224017
FWP Open Document Open Filing FWP 06 Mar 2019 333-224017
SC TO-T Open Document Open Filing SC TO-T 05 Mar 2019
424B5 Open Document Open Filing 424B5 05 Mar 2019 333-224017
4 Open Document Open Filing 27 Feb 2019 25 Feb 2019
4 Open Document Open Filing 27 Feb 2019 25 Feb 2019
4 Open Document Open Filing 27 Feb 2019 25 Feb 2019
4 Open Document Open Filing 27 Feb 2019 25 Feb 2019
4 Open Document Open Filing 27 Feb 2019 25 Feb 2019
4 Open Document Open Filing 27 Feb 2019 25 Feb 2019
4 Open Document Open Filing 27 Feb 2019 25 Feb 2019
4 Open Document Open Filing 27 Feb 2019 25 Feb 2019
4 Open Document Open Filing 27 Feb 2019 25 Feb 2019
10-K Open Document | Data Open Filing 2018 FORM 10-K 27 Feb 2019 31 Dec 2018 001-06571
4 Open Document Open Filing 22 Feb 2019 21 Feb 2019
SC TO-C Open Document Open Filing SC TO-C 21 Feb 2019
4 Open Document Open Filing 19 Feb 2019 15 Feb 2019
4 Open Document Open Filing 14 Feb 2019 12 Feb 2019
4 Open Document Open Filing 14 Feb 2019 13 Feb 2019
4 Open Document Open Filing 14 Feb 2019 14 Feb 2019
SC 13G/A Open Document Open Filing SC 13G/A 14 Feb 2019
SC 13G Open Document Open Filing SC 13G 14 Feb 2019
4 Open Document Open Filing 11 Feb 2019 08 Feb 2019
SC 13G/A Open Document Open Filing 11 Feb 2019 005-33582
4 Open Document Open Filing 06 Feb 2019 05 Feb 2019
SC 13G/A Open Document Open Filing 06 Feb 2019 005-33582
4 Open Document Open Filing 04 Feb 2019 04 Feb 2019
8-K/A Open Document Open Filing 8-K/A 01 Feb 2019 01 Feb 2019 001-06571
8-K Open Document Open Filing 8-K 01 Feb 2019 01 Feb 2019 001-06571
8-K Open Document Open Filing FORM 8-K: ITEM 5.02 30 Jan 2019 29 Jan 2019 001-06571
3 Open Document Open Filing 10 Jan 2019 01 Jan 2019
3 Open Document Open Filing 10 Jan 2019 01 Jan 2019
4 Open Document Open Filing 03 Jan 2019 31 Dec 2018
4 Open Document Open Filing 03 Jan 2019 31 Dec 2018
4 Open Document Open Filing 03 Jan 2019 31 Dec 2018
4 Open Document Open Filing 03 Jan 2019 31 Dec 2018
4 Open Document Open Filing 03 Jan 2019 31 Dec 2018
4 Open Document Open Filing 03 Jan 2019 31 Dec 2018
8-K Open Document Open Filing FORM 8-K: ITEM 5.02 RESIGNATION AS 10 Dec 2018 10 Dec 2018 001-06571
4 Open Document Open Filing 08 Nov 2018 07 Nov 2018
4 Open Document Open Filing 08 Nov 2018 08 Nov 2018
10-Q Open Document | Data Open Filing 3Q18 FORM 10-Q 06 Nov 2018 30 Sep 2018 001-06571
4 Open Document Open Filing 02 Nov 2018 01 Nov 2018
4 Open Document Open Filing 01 Nov 2018 30 Oct 2018
4 Open Document Open Filing 01 Nov 2018 31 Oct 2018
4 Open Document Open Filing 01 Nov 2018 30 Oct 2018
4 Open Document Open Filing 01 Nov 2018 30 Oct 2018
3 Open Document Open Filing 01 Nov 2018 29 Oct 2018
8-K Open Document Open Filing 8-K 25 Oct 2018 25 Oct 2018 001-06571
3 Open Document Open Filing 05 Oct 2018 03 Oct 2018
8-K Open Document Open Filing 8-K 04 Oct 2018 02 Oct 2018 001-06571
SC 13G Open Document Open Filing SC 13G 04 Oct 2018
4 Open Document Open Filing 03 Oct 2018 02 Oct 2018
4 Open Document Open Filing 02 Oct 2018 28 Sep 2018
4 Open Document Open Filing 02 Oct 2018 28 Sep 2018
4 Open Document Open Filing 02 Oct 2018 28 Sep 2018
4 Open Document Open Filing 02 Oct 2018 28 Sep 2018
4 Open Document Open Filing 02 Oct 2018 28 Sep 2018
4 Open Document Open Filing 02 Oct 2018 28 Sep 2018
4 Open Document Open Filing 4 02 Oct 2018 01 Oct 2018 001-38662
8-K Open Document Open Filing 8-K 27 Sep 2018 25 Sep 2018 001-06571
3 Open Document Open Filing 3 26 Sep 2018 26 Sep 2018 001-38662
4 Open Document Open Filing 19 Sep 2018 18 Sep 2018
4 Open Document Open Filing 18 Sep 2018 17 Sep 2018
10-Q Open Document | Data Open Filing 2Q18 FORM 10-Q (MRK 06.30.2018) 07 Aug 2018 30 Jun 2018 001-06571
4 Open Document Open Filing 06 Aug 2018 03 Aug 2018
4 Open Document Open Filing 02 Aug 2018 02 Aug 2018
4 Open Document Open Filing 01 Aug 2018 31 Jul 2018
8-K Open Document Open Filing 8-K 27 Jul 2018 27 Jul 2018 001-06571
4 Open Document Open Filing 02 Jul 2018 29 Jun 2018
4 Open Document Open Filing 02 Jul 2018 29 Jun 2018
4 Open Document Open Filing 02 Jul 2018 29 Jun 2018
4 Open Document Open Filing 02 Jul 2018 29 Jun 2018
4 Open Document Open Filing 02 Jul 2018 29 Jun 2018
4 Open Document Open Filing 02 Jul 2018 29 Jun 2018
11-K Open Document Open Filing FORM 11-K: MSD PUERTO RICO SAVINGS & SECURITY PLAN (MRK 12.31.2017) 19 Jun 2018 31 Dec 2017 001-06571
11-K Open Document Open Filing FORM 11-K: MSD EMPLOYEE STOCK PURCHASE AND SAVINGS PLAN (MRK 12.31.2017) 19 Jun 2018 31 Dec 2017 001-06571
11-K Open Document Open Filing FORM 11-K: MERCK US SAVINGS PLAN (MRK 12.31.2017) 19 Jun 2018 31 Dec 2017 001-06571
4 Open Document Open Filing 19 Jun 2018 18 Jun 2018
4 Open Document Open Filing 29 May 2018 25 May 2018
4 Open Document Open Filing 29 May 2018 25 May 2018
4 Open Document Open Filing 29 May 2018 25 May 2018
4 Open Document Open Filing 29 May 2018 25 May 2018
4 Open Document Open Filing 29 May 2018 25 May 2018
4 Open Document Open Filing 29 May 2018 25 May 2018
4 Open Document Open Filing 29 May 2018 25 May 2018
4 Open Document Open Filing 29 May 2018 25 May 2018
4 Open Document Open Filing 29 May 2018 25 May 2018
4 Open Document Open Filing 29 May 2018 25 May 2018
4 Open Document Open Filing 29 May 2018 25 May 2018
4 Open Document Open Filing 29 May 2018 25 May 2018
SD Open Document Open Filing FORM SD FOR CALENDAR YEAR 2017 FILED MAY 29 2018 29 May 2018 001-06571
8-K Open Document Open Filing 8-K - ANNUAL MEETING VOTE RESULTS - 2018 24 May 2018 24 May 2018 001-06571
4 Open Document Open Filing 16 May 2018 15 May 2018
4 Open Document Open Filing 08 May 2018 04 May 2018
4 Open Document Open Filing 08 May 2018 04 May 2018
4 Open Document Open Filing 08 May 2018 04 May 2018
4 Open Document Open Filing 08 May 2018 04 May 2018
4 Open Document Open Filing 08 May 2018 04 May 2018
4 Open Document Open Filing 08 May 2018 04 May 2018
4 Open Document Open Filing 08 May 2018 04 May 2018
4 Open Document Open Filing 08 May 2018 04 May 2018
4 Open Document Open Filing 08 May 2018 04 May 2018
4 Open Document Open Filing 08 May 2018 04 May 2018
4 Open Document Open Filing 08 May 2018 04 May 2018
DEFA14A Open Document Open Filing DEFINITIVE ADDITIONAL MATERIALS - REMINDER LETTER 08 May 2018 001-06571
10-Q Open Document | Data Open Filing 1Q18 FORM 10-Q 08 May 2018 31 Mar 2018 001-06571
4 Open Document Open Filing 02 May 2018 01 May 2018
4 Open Document Open Filing 02 May 2018 01 May 2018
4 Open Document Open Filing 02 May 2018 01 May 2018
8-K Open Document Open Filing 8-K 01 May 2018 01 May 2018 001-06571
4 Open Document Open Filing 17 Apr 2018 16 Apr 2018
3 Open Document Open Filing 17 Apr 2018 16 Apr 2018
DEFA14A Open Document Open Filing MERCK & CO., INC. - DEFA14A 09 Apr 2018 001-06571
DEFA14A Open Document Open Filing MERCK & CO., INC. - DEFA14A 09 Apr 2018 001-06571
DEF 14A Open Document Open Filing MERCK & CO., INC. - DEF 14A 09 Apr 2018 09 Apr 2018 001-06571
4 Open Document Open Filing 03 Apr 2018 02 Apr 2018
4 Open Document Open Filing 03 Apr 2018 02 Apr 2018
4 Open Document Open Filing 03 Apr 2018 02 Apr 2018
4 Open Document Open Filing 03 Apr 2018 02 Apr 2018
4 Open Document Open Filing 03 Apr 2018 02 Apr 2018
4 Open Document Open Filing 03 Apr 2018 02 Apr 2018
S-3ASR Open Document Open Filing S-3ASR 29 Mar 2018 333-224017
S-3ASR Open Document Open Filing S-3ASR 29 Mar 2018 333-224016
4 Open Document Open Filing 05 Mar 2018 01 Mar 2018
3 Open Document Open Filing 05 Mar 2018 01 Mar 2018
4 Open Document Open Filing 01 Mar 2018 27 Feb 2018
4 Open Document Open Filing 01 Mar 2018 27 Feb 2018
4 Open Document Open Filing 01 Mar 2018 27 Feb 2018
4 Open Document Open Filing 01 Mar 2018 27 Feb 2018
4 Open Document Open Filing 01 Mar 2018 27 Feb 2018
4 Open Document Open Filing 01 Mar 2018 27 Feb 2018
4 Open Document Open Filing 01 Mar 2018 27 Feb 2018
4 Open Document Open Filing 01 Mar 2018 27 Feb 2018
4 Open Document Open Filing 01 Mar 2018 27 Feb 2018
4 Open Document Open Filing 01 Mar 2018 27 Feb 2018
4 Open Document Open Filing 01 Mar 2018 27 Feb 2018
10-K Open Document | Data Open Filing 2017 FORM 10-K 27 Feb 2018 31 Dec 2017 001-06571
8-K Open Document Open Filing 8-K 26 Feb 2018 21 Feb 2018 001-06571
SC 13G Open Document Open Filing SC 13G 14 Feb 2018
SC 13G/A Open Document Open Filing SC 13G/A 14 Feb 2018 005-33582
SC 13G/A Open Document Open Filing SC 13G/A 13 Feb 2018
4 Open Document Open Filing 09 Feb 2018 09 Feb 2018
4 Open Document Open Filing 09 Feb 2018 09 Feb 2018
SC 13G/A Open Document Open Filing 09 Feb 2018 005-33582
5 Open Document Open Filing FORM 5 SUBMISSION 08 Feb 2018 31 Dec 2017 001-37367
8-K Open Document Open Filing 8-K 02 Feb 2018 02 Feb 2018 001-06571
8-K Open Document Open Filing 8-K 26 Jan 2018 23 Jan 2018 001-06571
SC 13G/A Open Document Open Filing 25 Jan 2018 005-33582
3 Open Document Open Filing FORM 3 SUBMISSION 24 Jan 2018 24 Jan 2018 001-38356
4/A Open Document Open Filing 19 Jan 2018 12 Jan 2018
4 Open Document Open Filing 16 Jan 2018 16 Jan 2018
4 Open Document Open Filing 16 Jan 2018 16 Jan 2018
4 Open Document Open Filing 16 Jan 2018 12 Jan 2018
4 Open Document Open Filing 03 Jan 2018 29 Dec 2017
4 Open Document Open Filing 03 Jan 2018 29 Dec 2017
4 Open Document Open Filing 03 Jan 2018 29 Dec 2017
4 Open Document Open Filing 03 Jan 2018 29 Dec 2017
4 Open Document Open Filing 03 Jan 2018 29 Dec 2017
4 Open Document Open Filing 18 Dec 2017 15 Dec 2017
SC 13G Open Document Open Filing 15 Nov 2017
4 Open Document Open Filing 13 Nov 2017 09 Nov 2017
4 Open Document Open Filing 09 Nov 2017 08 Nov 2017
10-Q Open Document | Data Open Filing 3Q17 FORM 10-Q 07 Nov 2017 30 Sep 2017 001-06571
8-K Open Document Open Filing 06 Nov 2017 01 Nov 2017 001-06571
8-K Open Document Open Filing 8-K 27 Oct 2017 27 Oct 2017 001-06571
SC 13G Open Document Open Filing SC 13G 16 Oct 2017
4 Open Document Open Filing 02 Oct 2017 29 Sep 2017
4 Open Document Open Filing 02 Oct 2017 29 Sep 2017
4 Open Document Open Filing 02 Oct 2017 29 Sep 2017
4 Open Document Open Filing 02 Oct 2017 29 Sep 2017
4 Open Document Open Filing 02 Oct 2017 29 Sep 2017
4/A Open Document Open Filing 06 Sep 2017 04 Aug 2016
10-Q Open Document | Data Open Filing 2Q17 FORM 10-Q 08 Aug 2017 30 Jun 2017 001-06571
8-K Open Document | Data Open Filing 8-K 28 Jul 2017 28 Jul 2017 001-06571
4 Open Document Open Filing 05 Jul 2017 30 Jun 2017
4 Open Document Open Filing 05 Jul 2017 30 Jun 2017
4 Open Document Open Filing 05 Jul 2017 30 Jun 2017
4 Open Document Open Filing 05 Jul 2017 30 Jun 2017
4 Open Document Open Filing 05 Jul 2017 30 Jun 2017
11-K Open Document Open Filing FORM 11-K: MSD PUERTO RICO SAVINGS & SECURITY PLAN 19 Jun 2017 31 Dec 2016 001-06571
11-K Open Document Open Filing FORM 11-K: MSD EMPLOYEE STOCK PURCHASE AND SAVINGS PLAN 19 Jun 2017 31 Dec 2016 001-06571
11-K Open Document Open Filing FORM 11-K: MERCK US SAVINGS PLAN 19 Jun 2017 31 Dec 2016 001-06571
3 Open Document Open Filing 01 Jun 2017 23 May 2017
4 Open Document Open Filing 30 May 2017 26 May 2017
4 Open Document Open Filing 30 May 2017 26 May 2017
4 Open Document Open Filing 30 May 2017 26 May 2017
4 Open Document Open Filing 30 May 2017 26 May 2017
4 Open Document Open Filing 30 May 2017 26 May 2017
4 Open Document Open Filing 30 May 2017 26 May 2017
4 Open Document Open Filing 30 May 2017 26 May 2017
4 Open Document Open Filing 30 May 2017 26 May 2017
4 Open Document Open Filing 30 May 2017 26 May 2017
4 Open Document Open Filing 30 May 2017 26 May 2017
4 Open Document Open Filing 30 May 2017 26 May 2017
4 Open Document Open Filing 30 May 2017 26 May 2017
3 Open Document Open Filing 30 May 2017 23 May 2017
SD Open Document Open Filing FORM SD - MAY 25 2017 25 May 2017 001-06571
8-K Open Document Open Filing FORM 8-K: ANNUAL MEETING VOTE RESULTS - 2017 25 May 2017 25 May 2017 001-06571
PX14A6G Open Document Open Filing 16 May 2017 001-06571
4 Open Document Open Filing 12 May 2017 12 May 2017
4 Open Document Open Filing 09 May 2017 05 May 2017
4 Open Document Open Filing 09 May 2017 05 May 2017
4 Open Document Open Filing 09 May 2017 05 May 2017
4 Open Document Open Filing 09 May 2017 05 May 2017
4 Open Document Open Filing 09 May 2017 05 May 2017
4 Open Document Open Filing 09 May 2017 05 May 2017
4 Open Document Open Filing 09 May 2017 05 May 2017
4 Open Document Open Filing 09 May 2017 05 May 2017
4 Open Document Open Filing 09 May 2017 05 May 2017
4 Open Document Open Filing 09 May 2017 05 May 2017
4 Open Document Open Filing 09 May 2017 05 May 2017
10-Q Open Document | Data Open Filing 1Q17 FORM 10-Q 09 May 2017 31 Mar 2017 001-06571
4 Open Document Open Filing 03 May 2017 02 May 2017
4 Open Document Open Filing 03 May 2017 02 May 2017
8-K Open Document Open Filing 8-K - 1Q EARNINGS REPORT 02 May 2017 02 May 2017 001-06571
PX14A6G Open Document Open Filing 17 Apr 2017 001-06571
DEFA14A Open Document Open Filing MERCK & CO. INC. - DEFA14A 10 Apr 2017 001-06571
DEF 14A Open Document Open Filing MERCK & CO. INC. - DEF 14A 10 Apr 2017 10 Apr 2017 001-06571
4/A Open Document Open Filing 10 Apr 2017 27 Feb 2017
4/A Open Document Open Filing 10 Apr 2017 27 Feb 2017
4 Open Document Open Filing 04 Apr 2017 03 Apr 2017
4 Open Document Open Filing 04 Apr 2017 31 Mar 2017
4 Open Document Open Filing 04 Apr 2017 31 Mar 2017